A catalyst inhibitor Lessens its selectivity All of these Is added in small quantity during the catalyst manufacture itself May be useful for suppressing undesirable side reactions TRUE ANSWER : ? YOUR ANSWER : ?
The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst. Decreases Increases Unpredictable from the data Remains unaffected TRUE ANSWER : ? YOUR ANSWER : ?
Space time in flow reactor is The reciprocal of the space velocity Usually equal to the residence time Both A and B A measure of its capacity TRUE ANSWER : ? YOUR ANSWER : ?
Oil is hydrogenated using nickel catalyst in a __________ reactor. Fluidised bed Batch Slurry Fixed bed TRUE ANSWER : ? YOUR ANSWER : ?
A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds. 43833 1 3 32 TRUE ANSWER : ? YOUR ANSWER : ?
__________ is the controlling step in a highly temperature sensitive fluid-solid non-catalytic reaction. None of these Ash diffusion Chemical reaction Gas film diffusion TRUE ANSWER : ? YOUR ANSWER : ?
A batch reactor is characterised by Variation in reactor volume Variation in extent of reaction and properties of the reaction mixture with time Very low conversion Constant residence time TRUE ANSWER : ? YOUR ANSWER : ?
Semibatch reactor is preferred, when a/an A gas is to be reacted with liquid (e.g. hydrogenation of fat) Undersirable side reaction (at high concentration of one of the reactants) is to be avoided A highly exothermic reaction is to be controlled All of these TRUE ANSWER : ? YOUR ANSWER : ?
Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is 1 3 2 0 TRUE ANSWER : ? YOUR ANSWER : ?
The value of 'n' for a chemical reaction A → B, whose reaction rate is → CAn, will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled. 3 2 1 TRUE ANSWER : ? YOUR ANSWER : ?